Lock construction



Dec, 26, 1967 Y W. G. DE 'GRAY 3,360,290

LOCK CONSTRUCTION Filed Jan. 6, 1966 l 2 Sheets-Sheet l Fig. 3

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wil/im lull United States Patent O 3,360,290 LOCK CONSTRUCTION William G. De Gray, 900 25th St., West Palm Beach, Fla. 33407 Filed Jan. 6, 1966, Ser. No. 519,131 Claims. (Cl. 292-6) ABSTRACT OF THE DISCLOSURE A lock comprising one main bolt and two yauxiliary bolts simultaneously extendible into a keeper upon the rotation of an actuator. The auxiliary bolts are continuously spring-biased for movement in opposite directions laterally outward of the main bolt and `are retained against this lateral movement by the actuator until the three bolts are extended outwardly at which time a recess provided in the periphery of the rotatable actuator `aligns with a similar recess on each auxiliary bolt so as to allow for the lateral movement of both auxiliary bolts. The actuator is received through elongated slots in all three bolts and includes an elongated lateral projection which selectively engages the main bolt for effecting the extension and retraction thereof, the auxiliary bolts being pivoted to the main bolt for movement therewith.

This invention relates generally to lock constructions, and more specifically to a sliding bolt type lock having a main or carrier bolt and one or more auxiliary bolts pivotally mounted on said carrier bolt for spreading laterally outwardly of said carrier bolt whereby said lock will be useful in horizontally sliding, vertically sliding or swinging doors inasmuch as the bolt resists both shear and tension forces on the lock.

It is an object of the present invention to provide a lock construction which may be utilized on swinging, vertically slidable or horizontally slidable doors, windows and the like.

It is another object of the present invention to provide a do-or lock of the sliding bolt variety which may be used on sliding doors as well as swinging doors and which is quite simple in construction and operation while at the same time being extremely sturdy and etlicient and which may be constructed of readily available materials.

It is a further object of the present invention to provide a lock of the character described including a novel and unique actuator mechanism for actuating a carrier bolt as Well as one or more auxiliary bolts which move outwardly and laterally of the lock housing and of the direction of movement of the carrier bolt.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is a partial perspective view of a door having the lock comprising |the present invention mounted in place therein, with the lock in withdrawn unlocked condition;

FIGURE 2 is a perspective view similar to that of FIG- URE l illustrating the lock in extended or locked condition;

FIGURE 3 is an enlarged vertical sectional view through a door having the lock illustrated in FIGURES 1 and 2 therein, with the lock in withdrawn or unlocked condition;

FIGURE 4 is a View similar to that of FIGURE 3 illustrating the lock actuating mechanism in an intermediate position;

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FIGURE 5 is a view similar to that of FIGURES 3 and 4, illustrating the actuating mechanism in locked condition;

FIGURE 6 is a View similar to that of FIGURES 3-5, illustrating the actuator mechanism in an intermediate position;

FIGURE 7 is an enlarged partial horizontal sectional View taken substantially on the plane of the line 7 7 of FIGURE 3;

FIGURE 8 is an enlarged partial vertical sectional view taken substantially on the plane of the line 8-8 of FIGURE 3; and

FIGURE 9 is an exploded perspective View of the actuator mechanism and the sliding bolts comprising the working components of the lock comprising the present invention.

Referring now more specically to the drawings, reference numeral 10 denotes a door of either the horizontally sliding or swinging variety having the lock 12 mounted in place therein. The lock 12 includes a casing or housing 14 having ltop and bottom walls 16 and 18, side walls 2l) and 22, and a rear wall 24. The side wall 22. is normally removably mounted on the casing 14 by means of the studs 26, and the forward end of the casing 14 is open, this end being closed by the cover plate 28 when the casing is mounted in the door 10, the cover plate 2S being mounted flush with the forward edge of the door 10 by means of the screws 30. The cover plate has a vertical slot 32 therein, which slot 32 is located substantially centrally of the case 14.

As is conventional, the door 10 is mounted in a frame or opening which includes the door jamb 34 having an offset portion or rabbet 36 thereon. Mounted in the jamb 34 and flush with the outer edge thereof is a keeper plate 38 which is mounted thereon yby the screws 40. The keeper plate 38 includes a vertical slot 42 therein which is aligned with and of equal size as slot 32 in Ithe cover plate 28.

A main or carrier bolt generally denoted by reference numeral 44 is slidably mounted in the casing 14 in the tracks 46 and 48 in the upper and lower walls 16 and 18 respectively. The carrier bolt 44 includes a main body portion Si? and a forwardly projecting lug or locking portion 52. The lug or locking portion 52 is substantially equal in height as the vertical slot 32 and is slidable therethrough in a manner to be described more fully below, and hence the slot 32 acts as a guide for the carrier bolt 44.

The body portion 50 of bolt 44 has 4a. centrally located substantially square aperture 54 therein, and an elongate pin 56 of generally square cross-section extends through the aperture 54 in the carrier bolt 44 and through openings 58 and 60 of side walls 20 and 22 respectively and then outwardly through apertures 62 and 64 in the door 1t). Recesses 66 and 68 in the door Ill are provided adjacent the lock housing 14, and an identical swingable handle 70 is mounted on either or both ends of the pin 56 by means of the connecting pins 72. It will be observed by referring to FIGURES l, 2, 7 and 8 in particular, that the handles 7l) are rotatably mounted on the pin 56 by means of the connecting pin 72 and that the handles 70` will hang downwardly fully within the recesses 66 and 68. In this manner the door may be used as a sliding door as the entire door can slide within a jamb. In order to use the handles 70, they merely must be swung outwardly at their free ends after which time they may be readily turned to the position illustrated in FIGURE 2 thereby turning the pin I56 therewith.

Retained between the side walls 20 and 22 of the housing or casing 14 and mounted on the pin 56 for rotation therewith is a lever-type actuator generally denoted by reference numeral 74. In FIGURE 9 it may be seen that the actuator 74 comprises a cylindrical hub 76 having a generally square aperture 78 formed therethrough which slidably receives the pin 56. The actuator 74 further includes an outwardly projecting nose 80 disposed centrally on the hub 76 and the latter defines shoulder portions 82 and 84 disposed on opposite sides of the nose 80. Each shoulder portion has a recess 86 formed therein and each recess 86 defines a pair of shoulders 86' and 86". The recesses 86 are disposed diametrically opposite each other land they may be of any suitable shape enabling their specific `operations set forth hereinafter.

The carrier bolt 44 has a first pin 88 extending laterally from one side of the rear of the body portion 50 with a spring 90 mounted thereon and a second pin 92 extending laterally from the opposite side of the body portion 50 at the rear thereof with a spring 94 thereon. A pair of auxiliary bolts 96 land 98, of identical configuration, are mounted on the body portion 50 of the carrier bolt 44 by a pin 100 which extends through the mounting holes 99 in the auxiliary bolts 96 and 98, and through the body portion 50 of carrier bolt 44. The auxiliary bolts 96 and 98 are rotatable on the pin 100, and each includes a matching edge or recess 102 in one edge thereof, so disposed ias to form a cam following hook-like end portion 104 on each of the bolts 96 and 98. The auxiliary bolts 96 and 98 are, of course, mounted on opposite sides of the body portion 50 of carrier bolt 44 on the pin 100, and, as may be appreciated by viewing FIGURES 2, 5 and 9 in particular, are oppositely oriented, the recess 102 in bolt 96 opening downwardly and the recess 102 in bolt 98 opening upwardly. Further, each of the bolts 96 and 98 has an elongate slot 106 therein defining a cam surface 106 and the slots are of uniform height except for the recess portion 108 adjacent one end thereof defining an abutment surface 108.

Referring now to FIGURES 3 6, the operation of the lock 12 may be readily explained. Referring first to FIG- URE 3, the carrier bolt 44 las well as the auxiliary bolts 96 and 98 are shown in the full withdrawn or unlocked position, the actuator 74 being rotated so that the projecting nose 80, which lies in the same plane as the aperture 54 in the body member 50 as well as in the same plane as the body member 50 is lying against the bottom wall 107 of the aperture 54. At this time, the main or carrier bolt 44 cannot be moved outwardly of the easing 14 inasmuch as the projecting nose 80 abuts the rear wall 109 of the aperture 54 and thereby prevents such movement. Thus, so long as the pin 56 is not turned in order to carry the `actuator 74 therewith, and move the projecting nose S out of the position illustrated in FIGURE 3, the main or carrier bolt 44 will of necessity remain in this unlocked position.

Referring now to FIGURE 4, it will be observed that the pin 56 has been turned by turning of either of the handles 70, and thus the actuator 74 has been moved 90, now lying against the front wall 110 of the aperture 54. It will be noted that the springs 90 and 94 are laterally offset from the main or carrier bolt 44 in vertical alignment with the auxiliary bolts 96 and 98 and that the springs 90 and 94 bear against the bolts 96 and 98 to bias the free end of bolt 96 downwardly and the free end of the bolt 98 upwardly. Of course, while the actuator 74 is in the position illustrated in FIGURES 3 and 4, with the outer camming surfaces of the shoulder portions 82 and 84 in constant contact with the surfaces 107, the bolts 96 and 98 will be restrained from pivotal movement about the pin 100 even though under the biasing force of springs 90 and 94.

Referring now to FIGURE it will be observed that rotation of the actuator 74 90 in a clockwise direction from the position illustrated in FIGURE 4 will cause the projecting nose 80 to abut against the wall 110 of aperture 54 and slide the main or carrier bolt 44 along the tracks 46 and 48 outwardly of the casing 14 through the aperture or slot 32. Also, it will be observed that the locking portion 52 of the carrier bolt 44 and the end portions 104 of the bolts 96 and 98 at this time extend outwardly through the slot 32 in the cover plate 28 and also through the slot 42 in the keeper 38. This of course will retrain the door 10 from moving laterally with respect to the jamb 34, but as will be appreciated, will not prevent the door 10 from being slid back away from the jamb. However, as will be appreciated by viewing FIGURE 5, as the actuator 74 is rotated by the pin 56 to the position illustrated in FIGURE 5, the shoulders 86" move towards a horizontal plane passing through the pin 56 and thus allow the bolts 96 and 98 to be biased by the springs 90 and 92 in opposite vertical directions with the hook portions 104 thereof hooked behind the keeper plate 38. Further, the shoulders 86' abut against the shoulders 108 and prevent the bolts 96 and 98 from being moved together at their free ends. Thus, the door is restrained from being moved away from the jamb. Further, it will be appreciated that inasmuch as the projecting nose of the actuator 74 is now squarely against the wall 110 of aperture 54, the bolt 44 cannot be moved rearwardly in the casing 14 until such time as the actuator 74 is turned.

Referring now to FIGURE 6, it will be observed that the actuator 74 has been rotated counterclockwise almost from the position illustrated in FIGURE 5. As the projecting nose 80 of the actuator 74 is further swung rearwardly into contact with the rear wall 109 of aperture 54, it will force the carrier bolt 44 back into the casing 14. Further, as the actuator 74 is rotated from the position of FIGURE 5 to the position illustrated in FIGURE 6, the shoulders 86" will be forced against the surfaces 106 to swing the bolts 96 and 98 together. Then, as soon as the actuator 74 is turned fully counterclockwise, the entire assembly of the carrier bolt 44 and the auxiliary bolts 96 and 98 will be moved back into the casing 14 by the camming action of the nose 80 on the rear wall 109.

In view of the above description, it will be appreciated that the instant invention comprises a novel lock mechanism including a main or carrier bolt 44 with two auxiliary bolts 96 and 98 pivotally mounted at one end thereon, the auxiliary bolts having hooked ends, .and means for biasing the auxiliary bolts into laterally offset hooking engagement with a keeper plate. It will be appreciated, of course, that any desired number of such auxiliary bolts may easily be provided, the -auxiliary bolts merely having to be mounted on the pin for pivotal motion with respect to the one main or carrier bolt which provided, and the housing or casing 14 as well as the actuator 74 would merely have to be additionally wider in order to accommodate the additional auxiliary bolts.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A lock comprising, a casing, a main bolt slidably mounted in said casing, means in said casing for moving said main bolt longitudinally therethrough, a keeper, said main bolt movable from said casing by said moving means into said keeper, at least one auxiliary bolt in said casing, said auxiliary bolt being pivotally mounted at one end on the innermost end of said main bolt whereby said auxiliary bolt will be moved from said casing when said main bolt is so moved, hook means on said auxiliary bolt, said hook means being at the other end of said auxiliary bolt and extending substantially adjacent the outermost end of said main bolt, said moving means comprising an actuator member mounted in said casing for rotation about a fixed axis for selectively engagement with said main bolt and a longitudinal driving thereof, and means for resiliently biasing said other end of said auxiliary bolt laterally outward of the path of travel of said main bolt, said actuator member including means thereon for limiting the lateral movement of said auxiliary bolt under the influence of said biasing means, and means on said actuator member permitting said biasing means to move said auxiliary bolt laterally outward as said actuator member is rotated into driving engagement with said main bolt.

2. The combination of claim 1 wherein said actuator member comprises a generally cylindrical hub mounted transversely of said casing and including a centrally located elongate projection and a shoulder extending laterally of said projection, said shoulder having a peripheral camming surface constituting said means limiting lateral movement of the auxiliary bolt, and a recess in said surface comprising said means permitting the biasing means to move the auxiliary bolt laterally, said shoulder extending through slot means in said auxiliary bolt, said slot means being in longitudinally spaced relation to the pivotally mounted one end of the auxiliary bolt and having a recess in one edge thereof therein, said camming surface normally engaging said one edge and limiting the lateral movement of said auxiliary bolt, said auxiliary bolt being moved laterally by said biasing means only when said first and second recesses are aligned for reception of the recess adjoining portions of said camming surface and said slot means edge.

3. The combination of claim 2 wherein said main bolt includes an enlarged central aperture defined by front, rear, top and bottom Walls, said front and rear walls being longitudinally spaced along said main bolt; said hub projection being located Within said main bolt aperture and selectively engageable with the longitudinally spaced front and rear walls upon rotation of said hub, said projection, upon rotation of said hub in a first direction, engaging the front wall of the main bolt aperture and upon a continuation of the rotation of said hub in said one direction, effecting a forward movement of said main bolt until said projection extends in general longitudinal alignment with said main bolt, said first and second recesses aligning with each other upon a general alignment of the projection with said main bolt upon rotation of the hub in the first direction, the projection, upon a rotation of the hub in the second or reverse direction, moving away from said front wall, the camming surface on the hub shoulder simultaneously engaging the slot means edge for camming the auxiliary bolt against the biasing means for movement inwardly into alignment with said main bolt, said projection, upon a continued rotation of the hub in the second direction, engaging the rear wall and effecting a rearward movement of the main bolt and auxiliary bolt.

4. The combination of claim 3 including a second auxiliary bolt generally similar in construction to the first auxiliary bolt, said auxiliary bolts being pivotally secured to opposite faces of said main bolt at said one end, said second auxiliary bolt having hook means on the other end thereof opening in an opposite direction from the hook means on the first auxiliary bolt, and means resiliently biasing said second auxiliary bolt in the opposite direction from said first auxiliary bolt for selective projection laterally outward of said main bolt, said hub including a second shoulder thereon operatively engaged with the second auxiliary bolt for simultaneous manipulation thereof in conjunction with the manipulation of the first auxiilary 'bolt by the first mentioned shoulder.

5. In the combination of claim 2 including a second auxiliary bolt generally similar in construction to the first auxiliaiy bolt, said auxiliary bolts being pivotally secured to opposite faces of said main bolt at said one end, said second auxiliary bolt having hook means on the other end thereof opening in an opposite direction from the hook means on the first auxiliary bolt, said means resiliently biasing said second auxiliary bolt in the opposite direction from said first `auxiilary bolt for selective projection laterally outward of said main bolt, said hub including a second shoulder thereon operatively engaged with the second auxiliary bolt for simultaneously manipulation thereof in conjunction with the manipulation of the first auxiliary bolt by the first mentioned shoulder.

References Cited UNITED STATES PATENTS D. 119,418 3/ 1940 Anderson et al.

1,083,173 12/1913 Zeckhauser 292-5 1,264,814 4/ 1918 Kornstein 701 16 1,996,171 7/1934 Holtzman 70-114 2,967,418 1/ 1961 Donald 292-6 X MARVIN A. CHAMPION, Primary Examiner.

I. R. MOSES, Assistant Examiner. 

1. A LOCK COMPRISING, A CASING, A MAIN BOLT SLIDABLY MOUNTED IN SAID CASING, MEANS IN SAID CASING FOR MOVING SAID MAIN BOLT LONGITUDINALLY THERETHROUGH, A KEEPER, SAID MAIN BOLT MOVABLE FROM SAID CASING BY SAID MOVING MEANS INTO SAID KEEPER, AT LEAST ONT AUXILIARY BOLT IN SAID CASING, SAID AUXILIARY BOLT BEING PIVOTALLY MOUNTED AT ONE END ON THE INNERMOST END OF SAID MAIN BOLT WHEREBY SAID AUXILIARY BOLT WILL BE MOVED FROM SAID CASING WHEN SAID MAIN BOLT IS SO MOVED, HOOK MEANS ON SAID AUXILIARY BOLT, SAID HOOK MEANS BEING AT THE OTHER END OF SAID AUXILIARY BOLT AND EXTENDING SUBSTANTIALLY ADJACENT THE OUTERMOST END OF SAID MAIN BOLT, SAID MOVING MEANS COMPRISING AN ACTUATOR MEMBER MOUNTED IN SAID CASING FOR ROTATION ABOUT A FIXED AXIS FOR SELECTIVELY ENGAGEMENT WITH SAID MAIN BOLT AND A LONGITUDINAL DRIVING THEREOF, AND MEANS FOR RESILIENTLY BIASING SAID OTHER END OF SAID AUXILIARY BOLT 